An on-demand MAC protocol for body sensor networks based on IEEE 802.15.4 = IEEE 802.15.4 기반의 인체센서네트워크를 위한 주문형 MAC 프로토콜

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A Body Sensor Network (BSN) is a network of sensors that sense vital signs of a human body. The vital signs can be divided into two categories based on relevance with the life: critical and non-critical signs. The critical vital signs, or real-time messages (RTMs), should be transmitted within the deadlines, and they must not be collided. Also, the non-critical signs, or non-real-time messages (NRTMs), are required to be delivered with the best effort. In this paper, an on-demand MAC (OD-MAC) is proposed for BSN to provide real-time transmission,collision avoidance, and energy efficiency. The protocol is developed on IEEE 802.15.4 standard, and some specifications are modified to support those requirements. The OD-MAC changes the superframe structure dynamically to schedule RTMs and NRTMs. Those messages request bandwidth,and the network coordinator adaptively changes beacon interval and allocates slots to the messages. For evaluating the performance, duty cycle according to required utilization, delivery ratio, and energy efficiency are tested with simulations using NS2.
Advisors
Kim, Dae-Youngresearcher김대영researcher
Description
한국정보통신대학교 : 공학부,
Publisher
한국정보통신대학교
Issue Date
2008
Identifier
392927/225023 / 020064577
Language
eng
Description

학위논문(석사) - 한국정보통신대학교 : 공학부, 2008.2, [ vi, 42 p. ]

Keywords

Body Sensor Networks; Wireless Sensor Networks; On-demand MAC; 주문형 MAC; 인체 센서 네트워크; 무선 센서 네트워크; IEEE 802.15.4

URI
http://hdl.handle.net/10203/54956
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=392927&flag=dissertation
Appears in Collection
School of Engineering-Theses_Master(공학부 석사논문)
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